en.wikipedia.org
en.wikipedia.org
moew.government.bg
Министерство на околната среда и водите
https://www.moew.government.bg › en
eea.europa.eu
European Environment Agency
https://www.eea.europa.eu › soer › 2015 › countries › bulgaria
trade.gov
International Trade Administration
https://www.trade.gov › country-commercial-guides › bulgaria-environmental-technologies
theworldcountries.com
The World Countries
https://theworldcountries.com › geo › environment › facts › Bulgaria
climateknowledgeportal.worldbank.org
Climate Change Knowledge Portal
https://climateknowledgeportal.worldbank.org › country › bulgaria › vulnerability
eea.europa.eu
climate.ec.europa.eu
unece.org
unece.org
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